call setUpTest safely
call setUpTest safely

Problem: Currently, if an exception occurs in setUpTest, the test is silently
skipped, whereas it the result should be error.

Solution: Use the _safeMethodCall method to call setUpTest.

ojengwa/nose2,ezigman/nose2,ptthiem/nose2,ezigman/nose2,ptthiem/nose2,ojengwa/nose2,little-dude/nose2,little-dude/nose2